Dubbed as the world’s largest building (or the largest standalone structure by floorspace, to be precise), the New Century Global Centre in Chengdu, China, has opened its doors to public last month. Photos by 郭红元@Baidu [Cn]…

With 1,700,000 square metres of floorspace, the building consists of a large shopping area, and also offices, conference hall, two hotels, entertainment facilities, ice skating rink, a Mediterranean village, and a theme park with an artificial beach.

Time lapse video of Tokyo Sky Tree by Darwinfish105 [Jp]. The construction of the tower – the world’s tallest (634m) – was completed on February 29.

The definition of “tower” differs from “building”, with the later mainly habitable. For many years the world’s tallest tower is taller than the tallest building, but it changed in 2010 with the completion of Burj Khalifa (830m) in the United Arab of Emirates.

Broad Sustainable Building, the Chinese firm that assembled a hotel in just six days in 2010, has recently achieved another feat by constructing a 30-storey building in 15 days. Time lapse video below (with information on various specs)…

The construction of the new world’s tallest skyscraper – the Kingdom Tower – is officially underway in Jeddah, the second largest city in Saudi Arabia.

The Kingdom Tower is designed by Adrian Smith + Gordon Gill Architecture – the same designer of Burj Khalifa, the current world’s tallest structure. The Kingdom Tower will be over 1000 metres, at least 173m taller than Burj Khalifa (828m).